<template>
  <div class="tinymce">
    <textarea :id="tinymceId"></textarea>
  </div>
</template>

<script>
  import tinymce from 'tinymce'
  import {getUUID} from '@/utils'

  export default {
    data() {
      const tinymceId = 'tinymce' + getUUID()
      return {
        flag: true,
        tinymceId: tinymceId,
        myEditor: null
      }
    },
    props: {
      value: {
        default: ''
      },
      tinymceHeight: {
        default: 500,
        type: Number
      }
    },
    watch: {
      value(val) {
        if (this.flag) {
          this.setContent(val)
        }
        this.flag = true
      }
    },
    mounted() {
      this.init()
    },
    beforeDestroy() {
      tinymce.remove(`#${this.tinymceId}`)
    },
    methods: {
      init() {
        const self = this
        this.Editor = tinymce.init({
          // 默认配置
          ...this.getDefalutConfig(),

          // 图片上传
          images_upload_handler: (blobInfo, success, failure) => {
            if (blobInfo.blob().size > self.maxSize) {
              failure('文件体积过大')
            }
            const formData = new FormData()
            formData.append('editorFile', blobInfo.blob())
            let token = localStorage.getItem('Authorization')

            this.$http({
              url: this.$http.adornUrl(`/admin/file/upload/tinymceEditor`),
              headers: {
                'Content-Type': 'multipart/form-data',
                'token': token
              },
              method: 'post',
              data: formData
            }).then(({data}) => {
              success(data)
            }).catch(() => {
              failure('服务器出了点小差')
            })
          },

          // prop内传入的的config
          ...this.config,

          // 挂载的DOM对象
          selector: `#${this.tinymceId}`,
          setup: (editor) => {
            self.myEditor = editor
            editor.on(
              'init', () => {
                self.loading = false
                if (self.value) {
                  editor.setContent(self.value)
                } else {
                  editor.setContent('')
                }
              }
            )
            // 抛出 'input' 事件钩子，同步value数据
            editor.on(
              'input change undo redo execCommand', () => {
                self.flag = false
                self.$emit('input', editor.getContent())
              }
            )
          }
        })
      },
      getDefalutConfig() {
        return {
          // GLOBAL
          height: this.tinymceHeight,
          theme: 'modern',
          language: 'zh_CN',
          toolbar: `styleselect | fontselect | formatselect | fontsizeselect | forecolor backcolor | bold italic underline strikethrough | insertfile link image | table | alignleft aligncenter alignright alignjustify | outdent indent | numlist bullist | preview removeformat  hr | paste code | undo redo | fullscreen `, // 需要的工具栏
          plugins: `
            paste
            importcss
            image
            code
            table
            advlist
            fullscreen
            link
            media
            lists
            textcolor
            colorpicker
            hr
            preview
          `,
          // CONFIG
          forced_root_block: 'p',
          force_p_newlines: true,
          importcss_append: true,

          // CONFIG: ContentStyle 这块很重要， 在最后呈现的页面也要写入这个基本样式保证前后一致， `table`和`img`的问题基本就靠这个来填坑了
          content_style: `
            *                         { padding:0; margin:0; }
            html, body                { height:100%; }
            img                       { max-width:100%; display:block;height:auto; }
            a                         { text-decoration: none; }
            iframe                    { width: 100%; }
            p                         { line-height:1.6; margin: 0px; }
            table                     { word-wrap:break-word; word-break:break-all; max-width:100%; border:none; border-color:#999; }
            .mce-object-iframe        { width:100%; box-sizing:border-box; margin:0; padding:0; }
            ul,ol                     { list-style-position:inside; }
          `,

          insert_button_items: 'image link | inserttable',

          // CONFIG: Paste
          paste_retain_style_properties: 'all',
          paste_word_valid_elements: '*[*]',        // word需要它
          paste_data_images: false,                  // 粘贴的同时能把内容里的图片自动上传，非常强力的功能
          paste_convert_word_fake_lists: false,     // 插入word文档需要该属性
          paste_webkit_styles: 'all',
          paste_merge_formats: true,
          nonbreaking_force_tab: false,
          paste_auto_cleanup_on_paste: false,

          // CONFIG: Font
          fontsize_formats: '10px 11px 12px 14px 16px 18px 20px 24px',

          // CONFIG: StyleSelect
          style_formats: [
            {
              title: '首行缩进',
              block: 'p',
              styles: {'text-indent': '2em'}
            },
            {
              title: '行高',
              items: [
                {title: '1', styles: {'line-height': '1'}, inline: 'span'},
                {title: '1.5', styles: {'line-height': '1.5'}, inline: 'span'},
                {title: '2', styles: {'line-height': '2'}, inline: 'span'},
                {title: '2.5', styles: {'line-height': '2.5'}, inline: 'span'},
                {title: '3', styles: {'line-height': '3'}, inline: 'span'}
              ]
            }
          ],

          // FontSelect
          font_formats: `
            微软雅黑=微软雅黑;
            宋体=宋体;
            黑体=黑体;
            仿宋=仿宋;
            楷体=楷体;
            隶书=隶书;
            幼圆=幼圆;
            Andale Mono=andale mono,times;
            Arial=arial, helvetica,
            sans-serif;
            Arial Black=arial black, avant garde;
            Book Antiqua=book antiqua,palatino;
            Comic Sans MS=comic sans ms,sans-serif;
            Courier New=courier new,courier;
            Georgia=georgia,palatino;
            Helvetica=helvetica;
            Impact=impact,chicago;
            Symbol=symbol;
            Tahoma=tahoma,arial,helvetica,sans-serif;
            Terminal=terminal,monaco;
            Times New Roman=times new roman,times;
            Trebuchet MS=trebuchet ms,geneva;
            Verdana=verdana,geneva;
            Webdings=webdings;
            Wingdings=wingdings,zapf dingbats`,

          // Tab
          tabfocus_elements: ':prev,:next',
          object_resizing: true,

          // Image
          imagetools_toolbar: 'rotateleft rotateright | flipv fliph | editimage imageoptions'
        }
      },
      setContent(content) {
        if (!content) {
          return
        }
        this.myEditor.setContent(content)
      },
      getContent() {
        return this.myEditor.getContent()
      }
    }
  }
</script>

<style lang="scss">
</style>
